JP2013120665A - Vehicular lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular lamp having a plurality of light sources and a lens arranged in front of these, in which the emission light from these plurality of light sources is emitted efficiently to the front of the lamp as controlled light.SOLUTION: A light source side lens 30 is arranged in front of a first and a second light sources 20A, 20B arranged in parallel, and an emission side lens 40 is arranged in front of it. In this case, a part of a first region 30A located in front of the first light source 20A in the light source side lens 30 is constituted as first deflection parts 30Ab1, 30Ab2 for deflecting and emitting the light from the first light source 20A entered into the first region 30A toward a second region 40B located in front of the second light source 20B in the emission side lens 40. Further, a part of the second region 40B in the emission side lens 40 is constituted as second deflection parts 40Ba1, 40Ba2 for deflecting and emitting the light from the first light source 20A deflected by and emitted from the first deflection parts 30Ab1, 30Ab2 toward the direction to the lamp front direction.

Description

  The present invention relates to a vehicular lamp including a plurality of light sources and a lens disposed in front of the light sources.

  2. Description of the Related Art Conventionally, as a configuration of a vehicular lamp, one having a plurality of light sources and a lens disposed in front thereof is widely known.

  In that case, in “Patent Document 1”, in such a vehicular lamp, a pair of upper and lower light sources is provided in the vicinity of the rear of both upper and lower ends of a lens in which a plurality of cylindrical tubes extending in the horizontal direction are arranged in the vertical direction. A configuration in which is arranged is described.

Japanese Utility Model Publication No. 6-56910

  In the vehicular lamp described in the above-mentioned “Patent Document 1”, light from a pair of upper and lower light sources is incident on a plurality of cylindrical beams at random, so that these are controlled light. There is a problem that it is difficult to efficiently emit the light forward.

  The present invention has been made in view of such circumstances, and in a vehicular lamp including a plurality of light sources and a lens disposed in front of the plurality of light sources, emitted light from the plurality of light sources is controlled. An object of the present invention is to provide a vehicular lamp that can be efficiently emitted to the front of the lamp as light.

  In the present invention, a lens is provided with a light source side lens and an emission side lens, and the above object is achieved by devising these configurations.

That is, the vehicular lamp according to the present invention is
First and second light sources arranged in parallel toward the front of the lamp, a light source side lens arranged in front of the first and second light sources, and an emission side lens arranged in front of the light source side lens In a vehicle lamp comprising:
A part of the first region located in front of the first light source in the light source side lens transmits the light from the first light source incident on the first region to the front of the second light source in the emission side lens. It is configured as a first deflection unit that deflects and emits light toward the second region that is positioned,
Part of the second region is configured as a second deflecting unit that deflects and emits the light from the first light source deflected and emitted from the first deflecting unit toward a direction closer to the front of the lamp. It is characterized by.

  The types of the “first light source” and the “second light source” are not particularly limited, and for example, a light emitting diode or the like can be employed.

  If the “first deflecting unit” is configured to deflect and emit light from the first light source incident on the first region of the light source side lens toward the second region of the exit side lens, the specific example thereof will be described. The shape and arrangement are not particularly limited.

  If the “second deflecting unit” is configured to deflect and emit light from the first light source deflected and emitted from the first deflecting unit of the light source side lens toward the direction toward the front of the lamp, The specific shape and arrangement are not particularly limited. In this case, the “direction closer to the lamp front direction” is not necessarily limited to the front side of the lamp as long as the light is directed in the direction closer to the lamp front direction than the light from the first light source deflected and emitted from the first deflection unit of the light source side lens. It does not have to be light traveling in the direction.

  As shown in the above configuration, in the vehicular lamp according to the present invention, the light source side lens is arranged in front of the first and second light sources arranged in parallel toward the front of the lamp, and the front side of the light source side lens. In this case, a part of the first area located in front of the first light source is partly from the first light source incident on the first area. The light is deflected and emitted toward a second region located in front of the second light source in the exit side lens, and the exit side lens has a part of the second region. Since it is configured as a second deflecting unit that deflects and emits light from the first light source deflected and emitted from the first deflecting unit in a direction closer to the front direction of the lamp, the following effects can be obtained. it can.

  In other words, when the first light source is turned on, the exit side lens only appears to shine in a region located in front of the first light source (that is, a fourth region described later) by the light that has passed through the first region of the light source side lens as it is. In addition, a part of the second region located in front of the second light source also appears to shine by the light that reaches from the first deflection unit of the light source side lens and exits from the second deflection unit. . As a result, the light emitting area of the exit side lens can be enlarged.

  In addition, when the second light source is turned on, the emission side lens has a second region located in front of the light source side lens by light that has passed through the region located in front of the second light source (that is, a third region described later). Will appear shining.

  As described above, when the first light source is turned on, a part of the second region of the emission side lens located in front of the second light source is used as a new light emitting surface, so that the second region when the second light source is turned on. The light emitting area of the exit side lens when the first light source is turned on can be enlarged in a limited space while maintaining the above light emitting function.

  In addition, since the enlargement of the light emitting area is realized by a combination of the first deflecting unit of the light source side lens and the second deflecting unit of the exit side lens, the control of the emitted light from the first light source is accurate. Can be done well.

  As described above, according to the present invention, in a vehicular lamp including a plurality of light sources and a lens disposed in front of the plurality of light sources, light emitted from the plurality of light sources is efficiently emitted to the front of the lamp as controlled light. be able to.

  In the above configuration, a part of the third region located in front of the second light source in the light source side lens positions light from the second light source incident on the third region in front of the first light source in the emission side lens. The light from the second light source is configured to be configured as a third deflection unit that deflects and emits light toward the fourth region, and a part of the fourth region of the emission side lens is deflected and emitted from the third deflection unit. If it is configured as a fourth deflecting unit that deflects and emits light toward a direction closer to the front of the lamp, the following operational effects can be obtained.

  That is, even when the second light source is turned on, the fourth region at the time of lighting of the first light source is obtained by using a part of the fourth region of the emission side lens positioned in front of the first light source as a new light emitting surface. The light emitting area of the exit side lens when the second light source is turned on can be expanded in a limited space while maintaining the light emitting function. In addition, since the enlargement of the light emitting area is realized by the combination of the third deflection unit of the light source side lens and the fourth deflection unit of the emission side lens, the control of the emitted light from the second light source is accurate. Can be done well.

  In the above configuration, the third light source is arranged on the opposite side of the first light source with respect to the second light source in a positional relationship in parallel with the first and second light sources, and the light source side lens is in front of the third light source. And the exit side lens has a sixth region located in front of the third light source, and a part of the fifth region is incident on the fifth region. The fifth light source is configured as a fifth deflecting unit that deflects and emits light from the three light sources toward the second region, and a part of the second region is generated from the third light source deflected and emitted from the fifth deflecting unit. If it is configured as a sixth deflecting unit that deflects and emits the light toward the lamp front direction, the following operational effects can be obtained.

  That is, when the third light source is turned on, the exit side lens only appears to shine in the area located in front of the third light source (that is, the sixth area described later) by the light that has passed through the fifth area of the light source side lens as it is. Instead, a part of the second region located in front of the second light source also appears to shine due to the light emitted from the sixth deflecting unit. As a result, the light emitting area of the exit side lens can be enlarged.

  In addition, when the second light source is turned on, the second lens located in front of the emission side lens appears to shine by the light that has passed through the third region of the light source side lens as it is.

  As described above, even when the third light source is turned on, by using a part of the second region of the emission side lens located in front of the second light source as a new light emitting surface, the second light source is turned on. While maintaining the light emitting function of the two regions, the light emitting region of the exit side lens when the third light source is turned on can be expanded in a limited space. In addition, since the enlargement of the light emitting area is realized by the combination of the fifth deflecting unit of the light source side lens and the sixth deflecting unit of the exit side lens, the control of the emitted light from the third light source is accurate. Can be done well.

  In this case, a part of the third region located in front of the second light source in the light source side lens positions the light from the second light source incident on the third region in front of the third light source in the emission side lens. The light from the second light source is configured to be configured as a seventh deflection unit that deflects and emits light toward the sixth region, and a part of the sixth region of the emission side lens is deflected and emitted from the seventh deflection unit. If it is configured as an eighth deflection unit that deflects and emits light toward a direction closer to the front of the lamp, the following operational effects can be obtained.

  That is, even when the second light source is turned on, a part of the sixth region of the exit side lens located in front of the third light source is used as a new light emitting surface, so that the sixth region when the third light source is turned on. The light emitting area of the exit side lens when the second light source is turned on can be further enlarged while maintaining the light emitting function. In addition, since the enlargement of the light emitting region is realized by a combination of the seventh deflecting unit of the light source side lens and the eighth deflecting unit of the exit side lens, the control of the emitted light from the second light source is accurate. Can be done well.

  In the above configuration, a plurality of sets of the first and second light sources are arranged, and the plurality of sets of the first and second light sources are configured by light emitting elements arranged on a single substrate. Then, the plurality of sets of the first and second light sources can make the emission side lens emit light brightly over a wide range, and the plurality of sets of the first and second light sources can be efficiently arranged in a space-saving manner. .

  In this case, a plurality of third light sources are arranged in parallel with a plurality of sets of first and second light sources, and the plurality of third light sources are arranged on the substrate. If the light emitting element is configured, the plurality of sets of first, second, and third light sources can make the emission side lens emit light brightly over a wider range, and the plurality of sets of first, second, and second light sources. In addition, the third light source can be efficiently arranged in a space-saving manner.

Plan sectional drawing which shows the vehicle lamp which concerns on one Embodiment of this invention II-II sectional view of FIG. The same figure as FIG. 1 showing the main part of the above embodiment. The figure similar to FIG. 1 which shows the modification of the said embodiment VV line sectional view of FIG. FIG. 4 is a view similar to FIG. 4 showing the main part of the above modification. Figure similar to FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan sectional view showing a vehicular lamp 10 according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II in FIG. FIG. 3 is a view similar to FIG. 1 showing the main part of the above embodiment.

  As shown in these drawings, the vehicular lamp 10 includes a first and a second lamp chamber 12 formed by a lamp body 12 and a transparent light-transmitting cover 14 attached to the front end opening of the lamp body 12. The second light sources 20A and 20B, the light source side lens 30, and the emission side lens 40 are incorporated.

  The vehicular lamp 10 functions as a tail lamp and a stop lamp. At this time, in the vehicular lamp 10, only the first light source 20A is turned on in the tail lamp lighting mode, and the first and second light sources 20A and 20B are simultaneously turned on in the stop lamp lighting mode, as shown in FIG. It comes to light up.

  The first and second light sources 20A and 20B are arranged in parallel toward the front of the lamp. Each of the first and second light sources 20A and 20B is composed of a red light emitting diode, and is disposed on a single substrate 22 at a predetermined interval in the left-right direction. The substrate 22 is fixedly supported on the lamp body 12.

  The light source side lens 30 is made of a colorless and transparent translucent member, and has a laterally long rectangular outer shape when viewed from the front of the lamp.

  The light source side lens 30 includes a first region 30A located in front of the first light source 20A and a third region 30B located in front of the second light source 20B. Fixedly supported. The first and third regions 30A and 30B have a symmetrical shape.

  On the other hand, the exit side lens 40 is also made of a colorless and transparent translucent member, and has a laterally long rectangular outer shape when viewed from the front of the lamp.

  The emission side lens 40 includes a fourth region 40A located in front of the first light source 20A (ie, in front of the first region 30A of the light source side lens 30) and a front of the second light source 20B (ie, the first of the light source side lens 30). The second region 40B is located in front of the second region 30B, and is fixedly supported by the lamp body 12 at both left and right ends thereof. These fourth and second regions 40A, 40B have a symmetrical shape.

  Next, specific configurations of the light source side lens 30 and the emission side lens 40 will be described.

  First, the configuration of the first region 30A of the light source side lens 30 will be described.

  The first region 30A is configured such that light emitted from the first light source 20A is incident from the rear surface 30Aa and emitted from the front surface 30Ab toward the front of the lamp.

  The rear surface 30Aa of the first region 30A allows light from the first light source 20A to enter the front direction of the lamp in the vicinity of the axis AxA that extends in the front-rear direction of the lamp so as to pass through the light emission center of the first light source 20A. An incident part 30Aa1, a pair of left and right incident parts 30Aa2 for making light from the first light source 20A incident on the left and right sides of the incident part 30Aa1 in the direction away from the lamp front direction to the left and right sides, and these second incident parts It consists of a pair of left and right reflecting portions 30Aa3 that internally reflect light from the first light source 20A incident from 30Aa2 toward the front of the lamp by total reflection.

  The rear surface 30Aa of the first region 30A has the same cross-sectional shape and is formed to extend in the vertical direction.

  On the other hand, the front surface 30Ab of the first region 30A has a reference surface portion 30Ab0 extending along a vertical plane orthogonal to the axis AxA, and a wedge shape toward the front of the lamp at two positions on the left and right sides of the axis AxA from the reference surface portion 30Ab0. It is composed of two projecting first deflection portions 30Ab1 and 30Ab2. In the reference surface portion 30Ab0, the light from the first light source 20A incident from the rear surface 30Aa of the first region 30A is emitted as it is in the front direction of the lamp, and in each of the first deflection portions 30Ab1 and 30Ab2, The light from the first light source 20A incident from the rear surface 30Aa of the first region 30A is internally reflected by total reflection, and then deflected and emitted toward the second region 40B of the emission side lens 40, respectively.

  The front surface 30Ab of the first region 30A has the same cross-sectional shape and is formed to extend in the vertical direction.

  Next, the configuration of the third region 30B of the light source side lens 30 will be described.

  As described above, the third region 30B has a shape symmetrical to the first region 30A.

  That is, the rear surface 30Ba of the third region 30B includes an incident portion 30Ba1 located in the vicinity of the axis AxB extending in the lamp front-rear direction, a pair of left and right incident portions 30Ba2 located on both sides thereof, and a left and right 1 located on both sides thereof. It is comprised by a pair of reflection part 30Ba3. In addition, the front surface 30Bb of the third region 30B has a reference surface portion 30Ab0 extending along a vertical plane orthogonal to the axis AxB, and two third deflection portions 30Ab1 protruding substantially wedge-shaped from the reference surface portion 30Ab0 toward the front of the lamp. , 30Ab2.

  The third region 30B emits light from the second light source 20B incident from the rear surface 30Ba and traveling in the front direction of the lamp as it is, toward the front direction of the lamp, at the reference surface portion 30Bb0 of the front surface 30Bb. In each of the third deflecting units 30Bb1 and 30Bb2, the light is internally reflected by total reflection and then deflected and emitted toward the fourth region 40A of the emission side lens 40.

  Next, the configuration of the fourth region 40A of the emission side lens 40 will be described.

  The rear surface 40Aa of the fourth region 40A has a reference surface portion 40Aa0 extending along a vertical plane orthogonal to the axis AxA, and 2 protruding in a wedge shape toward the rear of the lamp at two locations on the left and right sides of the axis AxA from the reference surface portion 40Aa0. It is comprised by four 4th deflection | deviation part 40Aa1 and 40Aa2. At this time, the two fourth deflection portions 40Aa1 and 40Aa2 are formed at positions substantially overlapping with the two first deflection portions 30Ab1 and 30Ab2 on the front surface 30Ab of the first region 30A in the front view of the lamp.

  And these two 4th deflection | deviation part 40Aa1 and 40Aa2 are the light from 2nd light source 20B deflected and emitted from two 3rd deflection | deviation part 30Bb1 and 30Bb2 of the 3rd area | region 30B of the light source side lens 30 by total reflection. After the internal reflection, the light is deflected and incident in a direction closer to the lamp front direction (specifically, the lamp front direction). At that time, in FIG. 3, the light deflected and emitted from the third deflection unit 30Bb1 located on the right side is deflected and incident in the front direction of the lamp by the fourth deflection unit 40Aa1 located on the right side, and the third deflection unit located on the left side. The light deflected and emitted from 30Bb2 is deflected and incident in the front direction of the lamp by the fourth deflection unit 40Aa2 located on the left side. In order to realize this, the two fourth deflection units 40Aa1 and 40Aa2 are set to have different inclination angles of the pair of right and left inclined surfaces.

  The rear surface 40Aa of the fourth region 40A is formed to have the same cross-sectional shape and extend in the vertical direction.

  On the other hand, on the front surface 40Ab of the fourth region 40A of the exit side lens 40, the fisheye lens portion 40Abs is assigned to each of the plurality of segments divided in the vertical and horizontal directions in the vertical plane orthogonal to the axis AxA. It becomes the composition.

  Each of the fisheye lens portions 40Abs emits light from the first light source 20A that is emitted from the reference surface portion 30Ab0 of the front surface 30Ab of the first region 30A and incident from the reference surface portion 40Aa0 of the rear surface 40Aa of the fourth region 40A. The light from the second light source 20B deflected and emitted from the third deflection units 30Bb1 and 30Bb2 in the third region 30B and incident from the fourth deflection units 40Aa1 and 40Aa2 in the fourth region 40A is centered in the lamp front direction. The light is diffused and emitted vertically and horizontally.

  Next, the configuration of the second region 40B of the emission side lens 40 will be described.

  As described above, the second region 40B has a symmetrical shape with the fourth region 40A.

  That is, the rear surface 40Ba of the second region 40B protrudes in a wedge shape toward the rear of the lamp at the reference surface portion 40Ba0 extending along a vertical plane orthogonal to the axis AxB and at the two left and right sides of the axis AxB from the reference surface portion 40Ba0. The two second deflection units 40Ba1 and 40Ba2 are configured.

  The two second deflection units 40Ba1 and 40Ba2 are configured to totally reflect the light from the first light source 20A deflected and emitted from the two first deflection units 30Ab1 and 30Ab2 in the first region 30A of the light source side lens 30. After the internal reflection, the light is deflected and incident in a direction closer to the lamp front direction (specifically, the lamp front direction).

  In addition, the front surface 40Bb of the second region 40B of the emission side lens 40 has the fisheye lens portion 40Bbs assigned to a plurality of segments divided in the vertical and horizontal directions in a vertical plane orthogonal to the axis AxB. It has a configuration.

  Each of the fisheye lens portions 40Bbs emits light from the second light source 20B that is emitted from the reference surface portion 30Bb0 of the front surface 30Bb of the third region 30B and incident from the reference surface portion 40Ba0 of the rear surface 40Ba of the second region 40B. The light from the first light source 20A that has been deflected and emitted from the first deflection units 30Ab1 and 30Ab2 in the first region 30A and entered from the second deflection units 40Ba1 and 40Ba2 in the second region 40B is centered in the front direction of the lamp. The light is diffused and emitted vertically and horizontally.

  Next, the effect of this embodiment is demonstrated.

  In the vehicular lamp 10 according to the present embodiment, a light source side lens 30 is disposed in front of the first and second light sources 20A and 20B arranged in parallel toward the front of the lamp, and the front of the light source side lens 30 is disposed. In this case, a part of the first region 30A located in front of the first light source 20A is incident on the first region 30A. The first light source 20A is configured as first deflection units 30Ab1 and 30Ab2 that deflect and emit light toward the second region 40B located in front of the second light source 20B in the emission side lens 40. In the side lens 40, a part of the second area 40B is deflected and emitted by the light from the first light source 20A deflected and emitted from the first deflecting portions 30Ab1 and 30Ab2 toward a direction closer to the front of the lamp. Second which is configured as a deflection unit 40Ba1,40Ba2 that can obtain the following effects.

  In other words, when the first light source 20A is turned on, the emission side lens 40 only looks like the fourth region 40A located in front of the first light source 20A is lit by the light that has passed through the first region 30A of the light source side lens 30 as it is. In addition, the second region 40B located in front of the second light source 20B also reaches the first deflection unit 30Ab1, 30Ab2 of the light source side lens 30, and the light emitted from the second deflection unit 40Ba1, 40Ba2 A part will look shining. As a result, the light emitting area of the exit side lens 40 can be enlarged.

  In addition, when the second light source 20B is turned on, the emission side lens 40 has a second region 40B located in front of the light source side lens 30 by light that has passed through the third region 30B located in front of the second light source 20B. Will appear shining.

  As described above, when the first light source 20A is turned on, the second light source 20B is turned on by using a part of the second region 40B of the emission side lens 40 positioned in front of the second light source 20B as a new light emitting surface. While maintaining the light emitting function of the second region 40B at the time, the light emitting region of the emission side lens 40 when the first light source 20A is turned on can be enlarged in a limited space.

  In addition, since the enlargement of the light emitting region is realized by a combination of the first deflection units 30Ab1 and 30Ab2 of the light source side lens 30 and the second deflection units 40Ba1 and 40Ba2 of the emission side lens 40, the first light source The light emitted from 20A can be accurately controlled.

  As described above, according to the present embodiment, in the vehicular lamp 10 including the first and second light sources 20A and 20B and the lenses (that is, the light source side lens 30 and the emission side lens 40) arranged in front thereof, The light emitted from the first and second light sources 20A and 20B can be efficiently emitted to the front of the lamp as controlled light.

  In the present embodiment, since the first and second light sources 20A and 20B are composed of light emitting elements disposed on a single substrate 22, they can be efficiently disposed in a space-saving manner.

  In the present embodiment, a part of the third region 30B located in front of the second light source 20B in the light source side lens 30 transmits the light from the second light source 20B incident on the third region 30B to the emission side lens. 40 is configured as third deflecting portions 30Bb1 and 30Bb2 that deflect and emit toward the fourth region 40A located in front of the first light source 20A, and a part of the fourth region 40A in the exit side lens 40 is Since it is configured as the fourth deflection units 40Aa1 and 40Aa2 that deflect and emit the light from the second light source 20B deflected and emitted from the third deflection units 30Bb1 and 30Bb2 toward the direction closer to the front of the lamp, An effect can be obtained.

  That is, even when the second light source 20B is turned on, the first light source 20A is turned on by using a part of the fourth region 40A of the emission side lens 40 positioned in front of the first light source 20A as a new light emitting surface. While maintaining the light emitting function of the fourth region 40A at the time, and in a limited space, the light emitting region of the emission side lens 40 when the second light source 20B is turned on can be enlarged. In addition, since the enlargement of the light emitting region is realized by a combination of the third deflection units 30Bb1 and 30Bb2 of the light source side lens 30 and the fourth deflection units 40Aa1 and 40Aa2 of the emission side lens 40, the second light source The light emitted from 20B can be accurately controlled.

  In the present embodiment, by turning on the first light source 20A, it is possible to cause the emission side lens 40 to emit light in a wide range of red with brightness suitable for the tail lamp, and to the first and second light sources 20A and 20B. Are simultaneously turned on, the emission side lens 40 can emit light in a wide range of red with brightness suitable for a stop lamp.

  Next, a modification of the above embodiment will be described.

  FIG. 4 is a view similar to FIG. 1 showing a vehicular lamp 110 according to this modification. FIG. 5 is a cross-sectional view taken along line VV in FIG. Further, FIGS. 6 and 7 are the same as FIGS. 4A and 4B, showing the main part of the present modification.

  As shown in these drawings, the vehicular lamp 110 according to this modification is the same in the basic configuration as in the above embodiment, but differs from the above embodiment in the following points. .

  That is, in the present modification, the third light source 120C is located on the opposite side of the first light source 120A (that is, the right side in FIG. 4) with respect to the second light source 120B in a positional relationship in parallel with the first and second light sources 120A and 120B. Is arranged. In this modification, the light source side lens 130 includes a fifth region 130C positioned in front of the third light source 120C, and the emission side lens 140 includes a sixth region 140C positioned in front of the third light source 120C. ing. Furthermore, in this modification, the light source side lens 130 and the emission side lens 140 are formed relatively long in the vertical direction.

  In this modification, the first and third light sources 120A and 120C are configured by amber light emitting diodes, and the second light source 120B is configured by a white light emitting diode.

  As shown in FIG. 5, three sets of these first, second, and third light sources 120A, 120B, 120C are arranged in the vertical direction. The three sets of the first, second, and third light sources 120A, 120B, and 120C are disposed on a single substrate 122.

  And the vehicle lamp 10 which concerns on this modification fulfill | performs the function as a front turn signal lamp, and the function as a daytime running lamp. At this time, as shown in FIG. 6, in the lighting mode of the front turn signal lamp, the vehicular lamp 10 is turned on simultaneously with the first light source 120A and the third light source 120C, and in the lighting mode of the daytime running lamp, As shown in FIG. 7, only the second light source 120B is lit.

  As shown in FIG. 6, in the fifth region 130C of the light source side lens 130, a part of the front surface 130Cb transmits the light from the third light source 120C incident on the fifth region 130C to the second region 130C. The fifth deflecting units 130Cb1 and 130Cb2 are configured to deflect and emit toward the region 140B. In addition, the second region 140B of the emission side lens 140 has a part of the rear surface 140Ba that emits light from the third light source 120C deflected and emitted from the fifth deflecting units 130Cb1 and 130Cb2 in a direction closer to the front direction of the lamp (specifically, Are configured as sixth deflecting portions 140Ba3 and 130Ba4 that are deflected and incident toward the front of the lamp.

  As shown in FIG. 7, in the third region 130B located in front of the second light source 120B in the light source side lens 130, a part of the front surface 130Bb is light from the second light source 120B incident on the third region 130B. Are configured as seventh deflecting units 130Bb3 and 130Bb4 that deflect and emit the light toward the sixth region 140C located in front of the third light source 120C in the exit side lens 140. In addition, in the sixth region 140C of the emission side lens 140, a part of the rear surface 140Ca is used to transmit light from the second light source 120B deflected and emitted from the seventh deflection units 130Bb3 and 130Bb4 toward the front direction of the lamp (specifically, Are configured as eighth deflection portions 140Ca1 and 140Ca2 that are deflected and incident toward the front of the lamp.

  At this time, in the present modification, a part of the light from the second light source 120B is directed to both the fourth region 140A and the sixth region 140C of the emission side lens 140 in the third region 130B of the light source side lens 130. In FIG. 7, the third deflection units 130Bb1 and 130Bb2 are arranged on the left side of the axis AxB, and the seventh deflection units 130Bb3 and 130Bb4 are symmetrically formed on the right side of the axis AxB in FIG. Is arranged in. Note that the eighth deflection portions 140Ca1 and 140Ca2 on the rear surface 140Ca of the sixth region 140C of the emission side lens 140 are arranged symmetrically with the fourth deflection portions 140Aa1 and 140Aa2 on the rear surface 140Aa of the fourth region 140A.

  Further, in this modification, in the second region 140B of the emission side lens 140, the light from the first light source 120A deflected and emitted from the first deflection units 130Ab1 and 130Ab2 of the first region 130A of the light source side lens 130, and the light source side Since it is necessary to deflect and emit light from the third light source 120C deflected and emitted from the fifth deflecting units 130Cb1 and 130Cb2 in the fifth region 130C of the lens 130 in a direction closer to the front direction of the lamp, in FIG. The second deflection units 140Ba1 and 140Ba2 are arranged on the left side of the axis AxB, and the sixth deflection units 140Ba3 and 140Ba4 are arranged on the right side of the axis AxB so as to be symmetrical with them. Note that the fifth deflection portions 130Cb1 and 130Cb2 of the front surface 130Cb of the fifth region 130C of the light source side lens 130 are arranged symmetrically with the first deflection portions 130Ab1 and 130Ab2 of the front surface 130Ab of the first region 130A.

  Next, the effect of this modification is demonstrated.

  In the vehicular lamp 110 according to this modification, when the third light source 120C is turned on, the emission side lens 140 is positioned in front of the third light source 120C by the light that has passed through the fifth region 130C of the light source side lens 130 as it is. In addition to the sixth region 140C appearing shining, the second region 140B located in front of the second light source 120B also appears partially lit by the light emitted from the sixth deflecting portions 140Ba3 and 130Ba4. Become. As a result, the light emitting area of the exit side lens 140 can be enlarged.

  In addition, when the second light source 120B is turned on, the second lens 140 located in front of the emission side lens 140 appears to shine by the light that has passed through the third region 130B of the light source lens 130 as it is.

  As described above, when the third light source 120C is turned on, the second light source 120B is turned on by using a part of the second region 140B of the emission side lens 140 positioned in front of the second light source 120B as a new light emitting surface. While maintaining the light emitting function of the second region 140B at the time, the light emitting region of the exit side lens 140 when the third light source 120C is turned on can be enlarged in a limited space. In addition, since the enlargement of the light emitting region is realized by a combination of the fifth deflection units 130Cb1 and 130Cb2 of the light source side lens 130 and the sixth deflection units 140Ba3 and 130Ba4 of the emission side lens 40, the third light source The light emitted from 120C can be accurately controlled.

  Further, even when the second light source 120B is turned on, the third light source 120C is turned on by using a part of the sixth region 140C of the emission side lens 140 positioned in front of the third light source 120C as a new light emitting surface. While maintaining the light emitting function of the sixth region 140C at the time, the light emitting region of the exit side lens 140 when the second light source 120B is turned on can be further expanded in a limited space. In addition, since the enlargement of the light emitting area is realized by a combination of the seventh deflection units 130Bb3 and 130Bb4 of the light source side lens 130 and the eighth deflection units 140Ca1 and 140Ca2 of the emission side lens 140, the second light source Control of the light emitted from 120B can be performed with high accuracy.

  In this modified example, as shown in FIG. 6, the first light source 120A and the third light source 120C are simultaneously turned on to cause the emission side lens 140 to emit light in a wide range with an amber color suitable for a front turn signal lamp. On the other hand, as shown in FIG. 7, by turning on the second light source 120B, the emission side lens 140 can emit light over a wide range in white suitable for a daytime running lamp.

  In the present modification, since the three sets of the first, second and third light sources 120A, 120B and 120C are arranged, the emission side lens 140 can emit light brightly over a wide range, and these three sets Since the first, second, and third light sources 120A, 120B, and 120C are disposed on the single substrate 122, they can be efficiently disposed in a space-saving manner.

  In addition, the numerical value shown as a specification in the said embodiment and modification is only an example, and of course, you may set these to a different value suitably.

10, 110 Vehicle lamp 12 Lamp body 14 Translucent cover 20A, 120A First light source 20B, 120B Second light source 22, 122 Substrate 30, 130 Light source side lens 30A, 130A First region 30Aa, 30Ba, 40Aa, 40Ba, 140Aa , 140Ba, 140Ca Rear face 30Aa1, 30Aa2, 30Ba1, 30Ba2 Incident part 30Aa3, 30Ba3 Reflector 30Ab, 30Bb, 40Ab, 40Bb, 130Ab, 130Bb, 130Cb Front face 30Ab0, 30Bb0, 40Aa130A30 1 deflection unit 30B, 130B third region 30Bb1, 30Bb2, 130Bb1, 130Bb2 third deflection unit 40, 140 exit side lens 40A, 140A 4th Areas 40Aa1, 40Aa2, 140Aa1, 140Aa2 Fourth deflection unit 40Abs, 40Bbs Fisheye lens unit 40B, 140B Second region 40Ba1, 40Ba2, 140Ba1, 140Ba2 Second deflection unit 120C Third light source 130Bb3, 130Bb4 Seventh deflection unit 130C , 130Cb2 Fifth deflector 140Ba3, 140Ba4 Sixth deflector 140C Sixth region 140Ca1, 140Ca2 Eight deflector AxA, AxB Axis line

Claims (6)

First and second light sources arranged in parallel toward the front of the lamp, a light source side lens arranged in front of the first and second light sources, and an emission side lens arranged in front of the light source side lens In a vehicle lamp comprising:
A part of the first region located in front of the first light source in the light source side lens transmits the light from the first light source incident on the first region to the front of the second light source in the emission side lens. It is configured as a first deflection unit that deflects and emits light toward the second region that is positioned,
Part of the second region is configured as a second deflecting unit that deflects and emits the light from the first light source deflected and emitted from the first deflecting unit toward a direction closer to the front of the lamp. A vehicular lamp characterized by the above. A part of the third region located in front of the second light source in the light source side lens transmits light from the second light source incident on the third region to the front of the first light source in the emission side lens. It is configured as a third deflecting unit that deflects and emits light toward the fourth region located,
A part of the fourth region is configured as a fourth deflecting unit that deflects and emits light from the second light source deflected and emitted from the third deflecting unit toward a direction closer to the front direction of the lamp. The vehicular lamp according to claim 1. A third light source is disposed on the opposite side of the first light source with respect to the second light source in a positional relationship in parallel with the first and second light sources,
The light source side lens includes a fifth region located in front of the third light source;
The exit lens includes a sixth region located in front of the third light source;
A part of the fifth region is configured as a fifth deflecting unit that deflects and emits the light from the third light source incident on the fifth region toward the second region,
A part of the second region is configured as a sixth deflecting unit that deflects and emits the light from the third light source deflected and emitted from the fifth deflecting unit toward a direction closer to the front of the lamp. The vehicular lamp according to claim 1 or 2. A part of the third region is configured as a seventh deflecting unit that deflects and emits the light from the second light source incident on the third region toward the sixth region,
Part of the sixth region is configured as an eighth deflecting unit that deflects and emits the light from the second light source deflected and emitted from the seventh deflecting unit toward the direction closer to the front of the lamp. The vehicular lamp according to claim 3. A plurality of sets of the first and second light sources are arranged,
The vehicular lamp according to claim 1 or 2, wherein the plurality of sets of first and second light sources are constituted by light emitting elements arranged on a single substrate. A plurality of the third light sources are arranged in a positional relationship in parallel with the plurality of sets of the first and second light sources,
6. The vehicular lamp according to claim 5, wherein the plurality of third light sources are constituted by light emitting elements arranged on the substrate.

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